How can I change the list of Framework versions shown?

If you have a lot of Frameworks and start up as a VLF designer you are asked to choose which one to use:

 

 

If you want to change this list of choices, or keep different lists of choices, then it's worth knowing:

 

Set Com(#Com_Owner) Usystemxmlfile('vf_sy001_system.xml') Usystemxmlchoice('vf_sy001_system_choice')